Changing between Nero Burning ROM and Nero Express

How does one (or two or three) go about changing between Nero Burning ROM and Nero Express. My Nero 5.x has decided to load up Nero Express each time now, when I’d prefer it to load up Nero Burning ROM. Thanks ahead of time.

But if you have the full version Nero Express should be the “easy way” offered by Nero and at the end you would see the Burning Rom to complete your project. Right?

However you can do it (disabling NE), but it is probably much easier to close Express and open the full thing going Start - Programs - Nero - Nero Burning Rom and start it.